Vulnerability · Published Feb 17, 2023 · Assigned by mitre
CVE-2021-34182
Critical 9.8
In plain English
A critical-severity incorrect default permissions in the ttyd package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.9%top 41.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An issue in ttyd v.1.6.3 allows attacker to execute arbitrary code via default configuration permissions.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:14 | ttyd | 1.6.3-2 | DEBIAN-CVE-2021-34182 |
| Ubuntu:22.04:LTS | ttyd | no fix listed | UBUNTU-CVE-2021-34182 |
| Ubuntu:24.04:LTS | ttyd | no fix listed | UBUNTU-CVE-2021-34182 |
| Ubuntu:25.10 | ttyd | no fix listed | UBUNTU-CVE-2021-34182 |
| Ubuntu:26.04:LTS | ttyd | no fix listed | UBUNTU-CVE-2021-34182 |
| Ubuntu:26.10 | ttyd | no fix listed | UBUNTU-CVE-2021-34182 |
Affected products (as reported)
Weakness: CWE-276 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H